# Relationship history for MSHA mine 3608774

Current hierarchy: **Targe Energy LLC → Bedrock Mines, LP → Nectarine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Neil I  Atwell → Nectarine; 1996-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ben-Hal Mining Company → Nectarine; 1999-03-01 to 2010-08-26; source msha-controller-operator-history
- **controller_controls_operator:** Neil I  Atwell → Ben-Hal Mining Company; 1999-03-01 to 2010-08-26; source msha-controller-operator-history
- **controller_controls_mine:** William B  Spence → Nectarine; 2005-07-28 to 2019-10-08; source msha-controller-operator-history
- **operator_operates_mine:** Bedrock Mines, LP → Nectarine; 2010-08-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William B  Spence → Bedrock Mines, LP; 2010-08-27 to 2019-10-08; source msha-controller-operator-history
- **controller_controls_mine:** Targe Energy LLC → Nectarine; 2019-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Targe Energy LLC → Bedrock Mines, LP; 2019-10-09 to current/open; source msha-controller-operator-history